一种磁耦合谐振式无线电能传输系统的研究  

Study of a Magnetic Coupling Resonant Wireless Power Transfer System

作　　者：靳伟 张希[1] 顾力强[1] 张智敏[1] 

机构地区：[1]上海交通大学,机械与动力工程学院,上海200240

出　　处：《电力电子技术》2018年第1期108-111,共4页Power Electronics

基　　金：国家自然科学基金(51277121)

摘　　要：在传统的无线电能传输(WPT)系统中,系统发射线圈上的电流随负载变化会引起传输功率和效率的变化。针对该问题,采用集成式LCC补偿拓扑。采用二端口网络分析法对系统进行建模和分析,得出不同负载情况下系统的输出电流和输入电压的增益、输入阻抗实部、系统效率的曲线。为向系统参数的选择提供参考,通过分析负载和耦合系数对谐振元件电压、电流应力的影响,提出了谐振元件参数选取的方法。最后,搭建了集成式LCC补偿拓扑的WPT系统样机,实验结果证明了理论分析的正确性。In the traditional wireless power transfer（WPT） system,the primary current of transmitted coil is related to load ,which will cause instability of transmission power and effficiency.Aimed at this problem, integrated LCC compen- sation topology is adopt.By applying the two-port network on the system modeling and analysis, it is concluded that a gain between the system＇s output current and input voltage ,system efficiency,the real component of input im- pedance ,all these parameters which change as switching frequency and different load are analyzed.To provide prefer- ence for the selection of system parameters, the resonant component parameters optimization design method is pro- posed by analyzing the impression between the load or coupling coefficient and the voltage or current of the resonant components.In the end, a tentative WPT system based on integrated LCC compensated topology is established, and the results prove the validity of theoretical analysis.

关 键 词：无线电能传输 谐振 耦合系数 

分 类 号：TM724[电气工程—电力系统及自动化]